You’ve got 3 days with the Kids a week. Most of them won’t do any homework training you give them.
Make the days serve a specific purpose that builds them up. Novices shouldn’t be doing box squats, push press, pendlay rows, barbell pressing.
Go goolge this “Wendler’s UGSS Compilation Series”. Jim specifically spoke about how he trains his kids currently. Visit his website or forum here and ask questions.